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DOE OSTI2020

Materials Data on Tl4P4N4O9 by Materials Project

Tl4P4N4O9 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent Tl+2.50+ sites. In the first Tl+2.50+ site, Tl+2.50+ is bonded in a distorted rectangular see-saw-like geometry to four O2- atoms. There are a spread of Tl–O bond distances ranging from 2.60–2.90 Å. In the second Tl+2.50+ site, Tl+2.50+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Tl–O bond distances ranging from 2.58–3.09 Å. In the third Tl+2.50+ site, Tl+2.50+ is bonded in a 2-coordinate geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 1.98–3.05 Å. In the fourth Tl+2.50+ site, Tl+2.50+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Tl–O bond distances ranging from 2.65–3.18 Å. In the fifth Tl+2.50+ site, Tl+2.50+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Tl–O bond distances ranging from 2.67–3.18 Å. In the sixth Tl+2.50+ site, Tl+2.50+ is bonded in a 4-coordinate geometry to one N3- and three O2- atoms. The Tl–N bond length is 3.19 Å. There are a spread of Tl–O bond distances ranging from 2.43–2.71 Å. In the seventh Tl+2.50+ site, Tl+2.50+ is bonded in a 4-coordinate geometry to one N3- and three O2- atoms. The Tl–N bond length is 3.19 Å. There are one shorter (2.34 Å) and two longer (2.65 Å) Tl–O bond lengths. In the eighth Tl+2.50+ site, Tl+2.50+ is bonded in a distorted L-shaped geometry to three O2- atoms. There are a spread of Tl–O bond distances ranging from 2.51–3.26 Å. There are eight inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.63 Å) and one longer (1.64 Å) P–N bond length. Both P–O bond lengths are 1.52 Å. In the second P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.63 Å) and one longer (1.64 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.53 Å) P–O bond length. In the third P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.62 Å) and one longer (1.64 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.54 Å) P–O bond length. In the fourth P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. Both P–N bond lengths are 1.64 Å. There is one shorter (1.51 Å) and one longer (1.54 Å) P–O bond length. In the fifth P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.62 Å) and one longer (1.65 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.53 Å) P–O bond length. In the sixth P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.63 Å) and one longer (1.64 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.53 Å) P–O bond length. In the seventh P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.63 Å) and one longer (1.64 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.53 Å) P–O bond length. In the eighth P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.63 Å) and one longer (1.64 Å) P–N bond length. There is one shorter (1.51 Å) and one longer (1.52 Å) P–O bond length. There are eight inequivalent N3- sites. In the first N3- site, N3- is bonded in a bent 150 degrees geometry to one Tl+2.50+ and two P5+ atoms. In the second N3- site, N3- is bonded in a distorted bent 150 degrees geometry to one Tl+2.50+ and two P5+ atoms. In the third N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the fourth N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the fifth N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the sixth N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the seventh N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. In the eighth N3- site, N3- is bonded in a bent 150 degrees geometry to two P5+ atoms. There are eighteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two Tl+2.50+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two Tl+2.50+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two Tl+2.50+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Tl+2.50+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Tl+2.50+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a distorted single-bond geometry to one Tl+2.50+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted single-bond geometry to three Tl+2.50+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted single-bond geometry to three Tl+2.50+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to three Tl+2.50+ and one P5+ atom. In the tenth O2- site, O2- is bonded in a distorted single-bond geometry to three Tl+2.50+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Tl+2.50+ and one P5+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Tl+2.50+ and one P5+ atom. In the thirteenth O2- site, O2- is bonded in a distorted single-bond geometry to two Tl+2.50+ and one P5+ atom. In the fourteenth O2- site, O2- is bonded in a distorted single-bond geometry to two Tl+2.50+ and one P5+ atom. In the fifteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two Tl+2.50+ atoms. In the sixteenth O2- site, O2- is bonded in a bent 120 degrees geometry to two Tl+2.50+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted single-bond geometry to one Tl+2.50+ and one P5+ atom. In the eighteenth O2- site, O2- is bonded in a single-bond geometry to one Tl+2.50+ and one P5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K16Tl22Pd by Materials Project

K16PdTl22 crystallizes in the trigonal R32 space group. The structure is three-dimensional. there are four inequivalent K sites. In the first K site, K is bonded in a 5-coordinate geometry to seven Tl atoms. There are a spread of K–Tl bond distances ranging from 3.65–4.09 Å. In the second K site, K is bonded in a 5-coordinate geometry to six Tl atoms. There are a spread of K–Tl bond distances ranging from 3.57–4.17 Å. In the third K site, K is bonded in a distorted trigonal non-coplanar geometry to nine Tl atoms. There are a spread of K–Tl bond distances ranging from 3.82–4.20 Å. In the fourth K site, K is bonded in a distorted hexagonal planar geometry to nine Tl atoms. There are a spread of K–Tl bond distances ranging from 3.84–4.27 Å. Pd is bonded in a distorted trigonal bipyramidal geometry to eleven Tl atoms. There are a spread of Pd–Tl bond distances ranging from 2.76–3.34 Å. There are six inequivalent Tl sites. In the first Tl site, Tl is bonded in a distorted single-bond geometry to three equivalent K, one Pd, and three equivalent Tl atoms. All Tl–Tl bond lengths are 3.15 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to six K and six Tl atoms. There are three shorter (3.23 Å) and three longer (3.52 Å) Tl–Tl bond lengths. In the third Tl site, Tl is bonded in a 1-coordinate geometry to four K, one Pd, and four equivalent Tl atoms. There are two shorter (3.23 Å) and two longer (3.32 Å) Tl–Tl bond lengths. In the fourth Tl site, Tl is bonded in a 2-coordinate geometry to four K and six Tl atoms. There are two shorter (3.14 Å) and two longer (3.26 Å) Tl–Tl bond lengths. In the fifth Tl site, Tl is bonded in a 10-coordinate geometry to six K and four Tl atoms. The Tl–Tl bond length is 3.30 Å. In the sixth Tl site, Tl is bonded in a 1-coordinate geometry to six K, one Pd, and four Tl atoms. The Tl–Tl bond length is 3.29 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cs5Tl11Cd2 by Materials Project

Cs5Cd2Tl11 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are three inequivalent Cs sites. In the first Cs site, Cs is bonded in a 8-coordinate geometry to eight Tl atoms. There are a spread of Cs–Tl bond distances ranging from 3.94–4.28 Å. In the second Cs site, Cs is bonded in a 8-coordinate geometry to eight Tl atoms. There are a spread of Cs–Tl bond distances ranging from 3.92–4.27 Å. In the third Cs site, Cs is bonded in a 6-coordinate geometry to six Tl atoms. There are a spread of Cs–Tl bond distances ranging from 3.95–4.06 Å. Cd is bonded to two equivalent Cd and ten Tl atoms to form a mixture of corner and face-sharing CdTl10Cd2 cuboctahedra. Both Cd–Cd bond lengths are 2.95 Å. There are a spread of Cd–Tl bond distances ranging from 3.29–3.41 Å. There are seven inequivalent Tl sites. In the first Tl site, Tl is bonded in a 11-coordinate geometry to three Cs, two equivalent Cd, and six Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.21–3.54 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to four Cs, two equivalent Cd, and six Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.44–3.56 Å. In the third Tl site, Tl is bonded in a 12-coordinate geometry to two equivalent Cs, two equivalent Cd, and eight Tl atoms. All Tl–Tl bond lengths are 3.55 Å. In the fourth Tl site, Tl is bonded in a 12-coordinate geometry to four Cs, two equivalent Cd, and six Tl atoms. The Tl–Tl bond length is 3.47 Å. In the fifth Tl site, Tl is bonded in a 4-coordinate geometry to two equivalent Cs and four Tl atoms. In the sixth Tl site, Tl is bonded in a 12-coordinate geometry to four Cs, two equivalent Cd, and six Tl atoms. There are two shorter (3.52 Å) and one longer (3.56 Å) Tl–Tl bond lengths. In the seventh Tl site, Tl is bonded in a 12-coordinate geometry to four Cs, two equivalent Cd, and six Tl atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Rb5Tl11Cd2 by Materials Project

Rb5Cd2Tl11 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. there are three inequivalent Rb sites. In the first Rb site, Rb is bonded in a 8-coordinate geometry to eight Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.77–4.12 Å. In the second Rb site, Rb is bonded in a 8-coordinate geometry to eight Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.78–4.15 Å. In the third Rb site, Rb is bonded in a 6-coordinate geometry to six Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.81–3.94 Å. Cd is bonded to two equivalent Cd and ten Tl atoms to form a mixture of corner and face-sharing CdTl10Cd2 cuboctahedra. There are one shorter (2.93 Å) and one longer (2.94 Å) Cd–Cd bond lengths. There are a spread of Cd–Tl bond distances ranging from 3.29–3.42 Å. There are seven inequivalent Tl sites. In the first Tl site, Tl is bonded in a 11-coordinate geometry to three Rb, two equivalent Cd, and six Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.21–3.53 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to four Rb, two equivalent Cd, and six Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.42–3.55 Å. In the third Tl site, Tl is bonded in a 4-coordinate geometry to two equivalent Rb, two equivalent Cd, and eight Tl atoms. There are two shorter (3.54 Å) and two longer (3.56 Å) Tl–Tl bond lengths. In the fourth Tl site, Tl is bonded in a 12-coordinate geometry to four Rb, two equivalent Cd, and six Tl atoms. The Tl–Tl bond length is 3.46 Å. In the fifth Tl site, Tl is bonded in a 2-coordinate geometry to two equivalent Rb and four Tl atoms. In the sixth Tl site, Tl is bonded in a 12-coordinate geometry to four Rb, two equivalent Cd, and six Tl atoms. There are two shorter (3.50 Å) and one longer (3.53 Å) Tl–Tl bond lengths. In the seventh Tl site, Tl is bonded in a 12-coordinate geometry to four Rb, two equivalent Cd, and six Tl atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CsRb14Tl27 by Materials Project

CsRb14Tl27 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Cs is bonded in a 12-coordinate geometry to six equivalent Rb and twelve Tl atoms. All Cs–Rb bond lengths are 4.49 Å. There are six shorter (4.34 Å) and six longer (4.46 Å) Cs–Tl bond lengths. There are three inequivalent Rb sites. In the first Rb site, Rb is bonded in a 1-coordinate geometry to eight Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.83–4.40 Å. In the second Rb site, Rb is bonded in a 6-coordinate geometry to nine Tl atoms. There are six shorter (4.18 Å) and three longer (4.35 Å) Rb–Tl bond lengths. In the third Rb site, Rb is bonded in a 9-coordinate geometry to one Cs and nine Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.95–4.13 Å. There are six inequivalent Tl sites. In the first Tl site, Tl is bonded in a 12-coordinate geometry to one Cs, four Rb, and seven Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.32–3.63 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to six Rb and six Tl atoms. All Tl–Tl bond lengths are 3.45 Å. In the third Tl site, Tl is bonded in a 12-coordinate geometry to six Rb and six Tl atoms. There are three shorter (3.20 Å) and three longer (3.53 Å) Tl–Tl bond lengths. In the fourth Tl site, Tl is bonded in a 2-coordinate geometry to four Rb and six Tl atoms. All Tl–Tl bond lengths are 3.19 Å. In the fifth Tl site, Tl is bonded in a 10-coordinate geometry to six Rb and four Tl atoms. The Tl–Tl bond length is 3.32 Å. In the sixth Tl site, Tl is bonded to one Cs, two equivalent Rb, and nine Tl atoms to form a mixture of distorted corner and face-sharing TlCsRb2Tl9 cuboctahedra. There are one shorter (3.19 Å) and two longer (3.40 Å) Tl–Tl bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Rb5Tl9 by Materials Project

Rb5Tl9 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. there are four inequivalent Rb sites. In the first Rb site, Rb is bonded in a 6-coordinate geometry to eight Tl atoms. There are a spread of Rb–Tl bond distances ranging from 3.82–4.40 Å. In the second Rb site, Rb is bonded in a 9-coordinate geometry to nine Tl atoms. There are six shorter (4.16 Å) and three longer (4.32 Å) Rb–Tl bond lengths. In the third Rb site, Rb is bonded in a 9-coordinate geometry to one Rb and nine Tl atoms. The Rb–Rb bond length is 4.48 Å. There are a spread of Rb–Tl bond distances ranging from 3.95–4.11 Å. In the fourth Rb site, Rb is bonded in a 6-coordinate geometry to six equivalent Rb and twelve Tl atoms. There are six shorter (4.32 Å) and six longer (4.43 Å) Rb–Tl bond lengths. There are six inequivalent Tl sites. In the first Tl site, Tl is bonded in a 12-coordinate geometry to five Rb and six Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.31–3.50 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to six Rb and six Tl atoms. All Tl–Tl bond lengths are 3.44 Å. In the third Tl site, Tl is bonded in a 12-coordinate geometry to six Rb and six Tl atoms. There are three shorter (3.20 Å) and three longer (3.53 Å) Tl–Tl bond lengths. In the fourth Tl site, Tl is bonded in a 10-coordinate geometry to four Rb and six Tl atoms. All Tl–Tl bond lengths are 3.18 Å. In the fifth Tl site, Tl is bonded in a 10-coordinate geometry to six Rb and four Tl atoms. The Tl–Tl bond length is 3.31 Å. In the sixth Tl site, Tl is bonded to three Rb and nine Tl atoms to form a mixture of corner and face-sharing TlRb3Tl9 cuboctahedra. There are one shorter (3.16 Å) and two longer (3.38 Å) Tl–Tl bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2Tl7Au by Materials Project

Ba2AuTl7 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded in a 11-coordinate geometry to two equivalent Au and eleven Tl atoms. Both Ba–Au bond lengths are 3.99 Å. There are a spread of Ba–Tl bond distances ranging from 3.68–3.85 Å. In the second Ba site, Ba is bonded in a 12-coordinate geometry to three equivalent Au and eleven Tl atoms. There are two shorter (3.79 Å) and one longer (3.84 Å) Ba–Au bond lengths. There are a spread of Ba–Tl bond distances ranging from 3.66–3.94 Å. Au is bonded in a 5-coordinate geometry to five Ba and five Tl atoms. There are a spread of Au–Tl bond distances ranging from 2.88–3.00 Å. There are seven inequivalent Tl sites. In the first Tl site, Tl is bonded in a 7-coordinate geometry to two equivalent Ba and five Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.18–3.46 Å. In the second Tl site, Tl is bonded in a distorted single-bond geometry to two equivalent Ba, one Au, and four Tl atoms. There are two shorter (3.20 Å) and one longer (3.56 Å) Tl–Tl bond lengths. In the third Tl site, Tl is bonded in a distorted single-bond geometry to three equivalent Ba, one Au, and three Tl atoms. The Tl–Tl bond length is 3.41 Å. In the fourth Tl site, Tl is bonded in a 8-coordinate geometry to three equivalent Ba and five Tl atoms. The Tl–Tl bond length is 3.20 Å. In the fifth Tl site, Tl is bonded in a distorted bent 120 degrees geometry to four Ba, two equivalent Au, and one Tl atom. In the sixth Tl site, Tl is bonded in a distorted single-bond geometry to four Ba, one Au, and four Tl atoms. There are two shorter (3.18 Å) and one longer (3.28 Å) Tl–Tl bond lengths. In the seventh Tl site, Tl is bonded in a 8-coordinate geometry to four Ba and four Tl atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K16Na9(Tl6Cd)3 by Materials Project

K16Na9(CdTl6)3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are four inequivalent K sites. In the first K site, K is bonded in a 4-coordinate geometry to six K, four Na, and six Tl atoms. There are a spread of K–K bond distances ranging from 4.06–4.45 Å. There are two shorter (4.10 Å) and two longer (4.13 Å) K–Na bond lengths. There are a spread of K–Tl bond distances ranging from 3.99–4.20 Å. In the second K site, K is bonded in a 4-coordinate geometry to five K, four equivalent Na, two equivalent Cd, and six Tl atoms. There are two shorter (4.11 Å) and three longer (4.19 Å) K–K bond lengths. All K–Na bond lengths are 4.20 Å. Both K–Cd bond lengths are 3.96 Å. There are two shorter (4.10 Å) and four longer (4.20 Å) K–Tl bond lengths. In the third K site, K is bonded in a 3-coordinate geometry to three K and four Tl atoms. There are a spread of K–Tl bond distances ranging from 3.82–4.06 Å. In the fourth K site, K is bonded in a 6-coordinate geometry to three equivalent K and six equivalent Tl atoms. All K–Tl bond lengths are 3.84 Å. There are two inequivalent Na sites. In the first Na site, Na is bonded in a 6-coordinate geometry to four K, one Cd, and five Tl atoms. The Na–Cd bond length is 3.18 Å. There are a spread of Na–Tl bond distances ranging from 3.26–3.46 Å. In the second Na site, Na is bonded in a 12-coordinate geometry to four equivalent K and six Tl atoms. There are four shorter (3.32 Å) and two longer (3.43 Å) Na–Tl bond lengths. Cd is bonded in a 12-coordinate geometry to two equivalent K, two equivalent Na, and six Tl atoms. There are four shorter (3.18 Å) and two longer (3.39 Å) Cd–Tl bond lengths. There are five inequivalent Tl sites. In the first Tl site, Tl is bonded to six K, three equivalent Na, and three equivalent Tl atoms to form a mixture of distorted face and corner-sharing TlK6Na3Tl3 cuboctahedra. All Tl–Tl bond lengths are 3.25 Å. In the second Tl site, Tl is bonded in a 12-coordinate geometry to three equivalent K, three equivalent Na, three equivalent Cd, and three equivalent Tl atoms. All Tl–Tl bond lengths are 3.32 Å. In the third Tl site, Tl is bonded in a 12-coordinate geometry to six K, two equivalent Na, two equivalent Cd, and two Tl atoms. The Tl–Tl bond length is 3.21 Å. In the fourth Tl site, Tl is bonded in a 3-coordinate geometry to three equivalent K, three Na, and two Tl atoms. The Tl–Tl bond length is 3.24 Å. In the fifth Tl site, Tl is bonded to six K, three equivalent Na, and three equivalent Tl atoms to form a mixture of distorted face and corner-sharing TlK6Na3Tl3 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb8Tl8O25 by Materials Project

Nb8Tl8O25 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are six inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and edges with four TlO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 38–39°. There are four shorter (2.02 Å) and two longer (2.03 Å) Nb–O bond lengths. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and edges with two TlO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 38–39°. There are four shorter (2.02 Å) and two longer (2.03 Å) Nb–O bond lengths. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and edges with two equivalent TlO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 38–39°. There are a spread of Nb–O bond distances ranging from 2.01–2.03 Å. In the fourth Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and edges with four TlO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 38–39°. There are three shorter (2.02 Å) and three longer (2.03 Å) Nb–O bond lengths. In the fifth Nb5+ site, Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–39°. There are five shorter (2.02 Å) and one longer (2.03 Å) Nb–O bond lengths. In the sixth Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with six NbO6 octahedra and edges with six TlO7 hexagonal pyramids. The corner-sharing octahedra tilt angles range from 38–39°. There are three shorter (2.01 Å) and three longer (2.03 Å) Nb–O bond lengths. There are six inequivalent Tl+1.25+ sites. In the first Tl+1.25+ site, Tl+1.25+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.77–2.83 Å. In the second Tl+1.25+ site, Tl+1.25+ is bonded to seven O2- atoms to form distorted TlO7 hexagonal pyramids that share corners with two TlO7 hexagonal pyramids, edges with three TlO7 hexagonal pyramids, and edges with six NbO6 octahedra. There are a spread of Tl–O bond distances ranging from 2.39–2.80 Å. In the third Tl+1.25+ site, Tl+1.25+ is bonded to seven O2- atoms to form distorted TlO7 hexagonal pyramids that share corners with two equivalent TlO7 hexagonal pyramids, edges with three TlO7 hexagonal pyramids, and edges with six NbO6 octahedra. There are a spread of Tl–O bond distances ranging from 2.39–2.80 Å. In the fourth Tl+1.25+ site, Tl+1.25+ is bonded to seven O2- atoms to form distorted TlO7 hexagonal pyramids that share edges with three TlO7 hexagonal pyramids and edges with six NbO6 octahedra. There are a spread of Tl–O bond distances ranging from 2.37–2.80 Å. In the fifth Tl+1.25+ site, Tl+1.25+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.78–2.83 Å. In the sixth Tl+1.25+ site, Tl+1.25+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of Tl–O bond distances ranging from 2.78–2.83 Å. There are seventeen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl+1.25+ atoms. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two equivalent Tl+1.25+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl+1.25+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl+1.25+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Nb5+ and two Tl+1.25+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Nb5+ and two Tl+1.25+ atoms. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl+1.25+ atoms. In the eighth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl+1.25+ atoms. In the ninth O2- site, O2- is bonded in a tetrahedral geometry to four Tl+1.25+ atoms. In the tenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two Tl+1.25+ atoms. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two equivalent Tl+1.25+ atoms. In the twelfth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two Nb5+ and two equivalent Tl+1.25+ atoms. In the thirteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl+1.25+ atoms. In the fourteenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two Tl+1.25+ atoms. In the fifteenth O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Nb5+ and two Tl+1.25+ atoms. In the sixteenth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Nb5+ and two Tl+1.25+ atoms. In the seventeenth O2- site, O2- is bonded in a 2-coordinate geometry to two Nb5+ and two equivalent Tl+1.25+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on K5Tl3O by Materials Project

K5Tl3O crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are eight inequivalent K sites. In the first K site, K is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.80 Å) and two longer (3.95 Å) K–Tl bond lengths. The K–O bond length is 2.69 Å. In the second K site, K is bonded in a single-bond geometry to two Tl and one O atom. Both K–Tl bond lengths are 3.62 Å. The K–O bond length is 2.54 Å. In the third K site, K is bonded in a water-like geometry to two Tl and two equivalent O atoms. Both K–Tl bond lengths are 4.03 Å. There are one shorter (2.83 Å) and one longer (2.86 Å) K–O bond lengths. In the fourth K site, K is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.80 Å) and two longer (3.95 Å) K–Tl bond lengths. The K–O bond length is 2.69 Å. In the fifth K site, K is bonded in a single-bond geometry to four Tl and one O atom. There are two shorter (3.76 Å) and two longer (3.97 Å) K–Tl bond lengths. The K–O bond length is 2.66 Å. In the sixth K site, K is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.79 Å) and two longer (3.87 Å) K–Tl bond lengths. The K–O bond length is 2.52 Å. In the seventh K site, K is bonded in a single-bond geometry to four Tl and one O atom. There are two shorter (3.76 Å) and two longer (3.97 Å) K–Tl bond lengths. The K–O bond length is 2.66 Å. In the eighth K site, K is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.79 Å) and two longer (3.88 Å) K–Tl bond lengths. The K–O bond length is 2.52 Å. There are four inequivalent Tl sites. In the first Tl site, Tl is bonded in a 8-coordinate geometry to six K and two Tl atoms. Both Tl–Tl bond lengths are 3.19 Å. In the second Tl site, Tl is bonded in a 8-coordinate geometry to six K and two Tl atoms. Both Tl–Tl bond lengths are 3.11 Å. In the third Tl site, Tl is bonded in a distorted body-centered cubic geometry to four K and four Tl atoms. In the fourth Tl site, Tl is bonded in a distorted body-centered cubic geometry to four K and four Tl atoms. There are two inequivalent O sites. In the first O site, O is bonded to six K atoms to form edge-sharing OK6 octahedra. In the second O site, O is bonded in an octahedral geometry to six K atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ca11Tl9O24 by Materials Project

Ca11Tl9O24 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are eleven inequivalent Ca sites. In the first Ca site, Ca is bonded to seven O atoms to form distorted CaO7 pentagonal bipyramids that share corners with four CaO6 octahedra, corners with four TlO6 octahedra, edges with three CaO6 octahedra, and edges with four equivalent TlO6 octahedra. The corner-sharing octahedra tilt angles range from 18–72°. There are a spread of Ca–O bond distances ranging from 2.45–2.64 Å. In the second Ca site, Ca is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ca–O bond distances ranging from 2.46–2.73 Å. In the third Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share a cornercorner with one TlO6 octahedra, corners with three CaO6 octahedra, edges with three equivalent CaO6 octahedra, and edges with six TlO6 octahedra. The corner-sharing octahedra tilt angles range from 0–63°. There are a spread of Ca–O bond distances ranging from 2.34–2.53 Å. In the fourth Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share corners with four CaO6 octahedra, edges with three equivalent CaO6 octahedra, and edges with six TlO6 octahedra. The corner-sharing octahedra tilt angles range from 0–64°. There are a spread of Ca–O bond distances ranging from 2.35–2.48 Å. In the fifth Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share corners with two CaO6 octahedra, corners with two equivalent TlO6 octahedra, corners with two equivalent CaO7 pentagonal bipyramids, edges with two equivalent CaO6 octahedra, and edges with four TlO6 octahedra. The corner-sharing octahedra tilt angles range from 8–64°. There are a spread of Ca–O bond distances ranging from 2.34–2.53 Å. In the sixth Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share corners with two CaO6 octahedra, corners with two equivalent TlO6 octahedra, edges with two equivalent CaO6 octahedra, edges with four TlO6 octahedra, and an edgeedge with one CaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 7–63°. There are a spread of Ca–O bond distances ranging from 2.33–2.53 Å. In the seventh Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share corners with two CaO6 octahedra, corners with two equivalent TlO6 octahedra, edges with six TlO6 octahedra, and an edgeedge with one CaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 7–64°. There are a spread of Ca–O bond distances ranging from 2.33–2.54 Å. In the eighth Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share corners with four CaO6 octahedra, edges with three equivalent CaO6 octahedra, edges with six TlO6 octahedra, and an edgeedge with one CaO7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 0–64°. There are a spread of Ca–O bond distances ranging from 2.35–2.47 Å. In the ninth Ca site, Ca is bonded to six O atoms to form CaO6 octahedra that share a cornercorner with one TlO6 octahedra, corners with three CaO6 octahedra, corners with two equivalent CaO7 pentagonal bipyramids, edges with three equivalent CaO6 octahedra, and edges with six TlO6 octahedra. The corner-sharing octahedra tilt angles range from 0–63°. There are a spread of Ca–O bond distances ranging from 2.37–2.44 Å. In the tenth Ca site, Ca is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ca–O bond distances ranging from 2.47–2.80 Å. In the eleventh Ca site, Ca is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of Ca–O bond distances ranging from 2.48–2.76 Å. There are five inequivalent Tl sites. In the first Tl site, Tl is bonded to six O atoms to form TlO6 octahedra that share corners with two CaO6 octahedra, corners with three TlO6 octahedra, a cornercorner with one CaO7 pentagonal bipyramid, edges with four TlO6 octahedra, and edges with five CaO6 octahedra. The corner-sharing octahedra tilt angles range from 0–59°. There are a spread of Tl–O bond distances ranging from 2.25–2.64 Å. In the second Tl site, Tl is bonded to six O atoms to form TlO6 octahedra that share corners with four TlO6 octahedra, edges with four CaO6 octahedra, edges with four TlO6 octahedra, and edges with two equivalent CaO7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 1–4°. There are a spread of Tl–O bond distances ranging from 2.16–2.52 Å. In the third Tl site, Tl is bonded to six O atoms to form TlO6 octahedra that share corners with two CaO6 octahedra, corners with two equivalent TlO6 octahedra, corners with two equivalent CaO7 pentagonal bipyramids, edges with two equivalent CaO6 octahedra, and edges with four TlO6 octahedra. The corner-sharing octahedra tilt angles range from 6–63°. There are a spread of Tl–O bond distances ranging from 2.28–2.52 Å. In the fourth Tl site, Tl is bonded to six O atoms to form TlO6 octahedra that share corners with four TlO6 octahedra, edges with three CaO6 octahedra, and edges with five TlO6 octahedra. The corner-sharing octahedra tilt angles range from 1–2°. There are a spread of Tl–O bond distances ranging from 2.16–2.51 Å. In the fifth Tl site, Tl is bonded to six O atoms to form distorted TlO6 octahedra that share a cornercorner with one CaO6 octahedra, corners with four TlO6 octahedra, edges with three TlO6 octahedra, and edges with six CaO6 octahedra. The corner-sharing octahedra tilt angles range from 0–59°. There are a spread of Tl–O bond distances ranging from 2.25–2.67 Å. There are eighteen inequivalent O sites. In the first O site, O is bonded to two Ca and four equivalent Tl atoms to form OCa2Tl4 octahedra that share corners with four OCa2Tl4 octahedra, corners with four equivalent OCa3Tl2 trigonal bipyramids, edges with four OCa2Tl4 octahedra, and edges with eight OCa4Tl square pyramids. The corner-sharing octahedra tilt angles range from 2–3°. In the second O site, O is bonded to four Ca and two equivalent Tl atoms to form OCa4Tl2 octahedra that share corners with four equivalent OCa4Tl square pyramids, corners with two equivalent OCa3Tl2 trigonal bipyramids, edges with six OCa4Tl2 octahedra, edges with two equivalent OCa4Tl square pyramids, and edges with four OCa2Tl2 tetrahedra. In the third O site, O is bonded to two Ca and two equivalent Tl atoms to form distorted OCa2Tl2 tetrahedra that share corners with four OCaTl5 octahedra, corners with four OCa4Tl square pyramids, corners with two equivalent OCa2Tl2 tetrahedra, corners with four OCa3Tl2 trigonal bipyramids, and edges with three OCa2Tl4 octahedra. The corner-sharing octahedra tilt angles range from 3–12°. In the fourth O site, O is bonded to two Ca and two equivalent Tl atoms to form OCa2Tl2 tetrahedra that share corners with four OCa2Tl4 octahedra, corners with four OCa4Tl square pyramids, corners with two equivalent OCa2Tl2 tetrahedra, corners with four OCa3Tl2 trigonal bipyramids, and edges with three OCa4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 3–13°. In the fifth O site, O is bonded to four Ca and one Tl atom to form OCa4Tl square pyramids that share corners with three equivalent OCa4Tl square pyramids, corners with two OCa2Tl2 tetrahedra, corners with four OCa3Tl2 trigonal bipyramids, edges with four OCa2Tl4 octahedra, edges with three OCa4Tl square pyramids, and edges with two OCa3Tl2 trigonal bipyramids. In the sixth O site, O is bonded to three Ca and two Tl atoms to form distorted OCa3Tl2 trigonal bipyramids that share corners with three OCa2Tl4 octahedra, corners with four OCa4Tl square pyramids, corners with four OCa2Tl2 tetrahedra, corners with two equivalent OCa3Tl2 trigonal bipyramids, edges with two OCa2Tl4 octahedra, edges with two OCa4Tl square pyramids, and edges with three OCa3Tl2 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 13–41°. In the seventh O site, O is bonded to two Ca and four Tl atoms to form OCa2Tl4 octahedra that share corners with two equivalent OCa2Tl4 octahedra, corners with four OCa2Tl2 tetrahedra, edges with five OCa2Tl4 octahedra, edges with two equivalent OCa4Tl square pyramids, an edgeedge with one OCa2Tl2 tetrahedra, and edges with four OCa3Tl2 trigonal bipyramids. The corner-sharing octahedral tilt angles are 3°. In the eighth O site, O is bonded to one Ca and five Tl atoms to form OCaTl5 octahedra that share corners with two equivalent OCa2Tl4 octahedra, corners with four OCa2Tl2 tetrahedra, edges with five OCa2Tl4 octahedra, edges with two equivalent OCa4Tl square pyramids, an edgeedge with one OCa2Tl2 tetrahedra, and edges with four OCa3Tl2 trigonal bipyramids. The corner-sharing octahedral tilt angles are 3°. In the ninth O site, O is bonded to four Ca and one Tl atom to form OCa4Tl square pyramids that share corners with two equivalent OCa4Tl2 octahedra, corners with three equivalent OCa4Tl square pyramids, corners with two OCa2Tl2 tetrahedra, corners with two equivalent OCa3Tl2 trigonal bipyramids, edges with five OCa4Tl2 octahedra, edges with three OCa4Tl square pyramids, and an edgeedge with one OCa3Tl2 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 5–6°. In the tenth O site, O is bonded to four Ca and one Tl atom to form distorted OCa4Tl square pyramids that share corners with two equivalent OCa4Tl2 octahedra, corners with two OCa2Tl2 tetrahedra, corners with five OCa4Tl trigonal bipyramids, edges with five OCa2Tl4 octahedra, edges with two equivalent OCa4Tl square pyramids, and edges with two OCa4Tl trigonal bipyramids. The corner-sharing octahedra tilt angles range from 5–6°. In the eleventh O site, O is bonded to two Ca and four Tl atoms to form OCa2Tl4 octahedra that share corners with two equivalent OCa2Tl4 octahedra, corners with four OCa2Tl2 tetrahedra, edges with five OCa4Tl2 octahedra, edges with four OCa4Tl square pyramids, an edgeedge with one OCaTl3 tetrahedra, and edges with two equivalent OCa4Tl trigonal bipyramids. The corner-sharing octahedral tilt angles are 3°. In the twelfth O site, O is bonded to two Ca and four Tl atoms to form OCa2Tl4 octahedra that share corners with two equivalent OCa2Tl4 octahedra, corners with four OCa2Tl2 tetrahedra, edges with five OCa4Tl2 octahedra, edges with four OCa4Tl square pyramids, an edgeedge with one OCa2Tl2 tetrahedra, and edges with two equivalent OCa4Tl trigonal bipyramids. The corner-sharing octahedral tilt angles are 2°. In the thirteenth O site, O is bonded to four Ca and one Tl atom to form distorted OCa4Tl trigonal bipyramids that share corners with three OCa4Tl2 octahedra, corners with four OCa4Tl square pyramids, corners with four OCa2Tl2 tetrahedra, corners with two equivalent OCa3Tl2 trigonal bipyramids, edges with two OCa2Tl4 octahedra, edges with two OCa4Tl square pyramids, and edges with three OCa4Tl trigonal bipyramids. The corner-sharing octahedra tilt angles range from 12–43°. In the fourteenth O site, O is bonded to three Ca and two Tl atoms to form distorted OCa3Tl2 trigonal bipyramids that share corners with three equivalent OCa4Tl square pyramids, corners with two OCa2Tl2 tetrahedra, corners with four OCa3Tl2 trigonal bipyramids, edges with four OCa2Tl4 octahedra, an edgeedge with one OCa4Tl square pyramid, and edges with four OCa3Tl2 trigonal bipyramids. In the fifteenth O site, O is bonded to two Ca and two equivalent Tl atoms to form OCa2Tl2 tetrahedra that share corners with four OCa2Tl4 octahedra, corners with two equivalent OCa4Tl square pyramids, corners with two equivalent OCaTl3 tetrahedra, corners with six OCa3Tl2 trigonal bipyramids, and edges with three OCa4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 3–13°. In the sixteenth O site, O is bonded to one Ca and three Tl atoms to form distorted OCaTl3 tetrahedra that share corners with four OCaTl5 octahedra, corners with two equivalent OCa4Tl square pyramids, corners with two equivalent OCa2Tl2 tetrahedra, corners with six

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tl3In2Se5 by Materials Project

Tl3In2Se5 crystallizes in the orthorhombic Aem2 space group. The structure is three-dimensional. there are five inequivalent Tl+1.67+ sites. In the first Tl+1.67+ site, Tl+1.67+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are one shorter (3.51 Å) and seven longer (3.52 Å) Tl–Se bond lengths. In the second Tl+1.67+ site, Tl+1.67+ is bonded in a 8-coordinate geometry to eight Se2- atoms. All Tl–Se bond lengths are 3.52 Å. In the third Tl+1.67+ site, Tl+1.67+ is bonded to four Se2- atoms to form TlSe4 tetrahedra that share edges with two equivalent InSe4 tetrahedra. All Tl–Se bond lengths are 2.73 Å. In the fourth Tl+1.67+ site, Tl+1.67+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.47–3.54 Å. In the fifth Tl+1.67+ site, Tl+1.67+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Tl–Se bond distances ranging from 3.48–3.54 Å. There are four inequivalent In+2.50+ sites. In the first In+2.50+ site, In+2.50+ is bonded to four Se2- atoms to form edge-sharing InSe4 tetrahedra. There are two shorter (2.65 Å) and two longer (2.66 Å) In–Se bond lengths. In the second In+2.50+ site, In+2.50+ is bonded to four Se2- atoms to form edge-sharing InSe4 tetrahedra. There are two shorter (2.65 Å) and two longer (2.66 Å) In–Se bond lengths. In the third In+2.50+ site, In+2.50+ is bonded to four Se2- atoms to form edge-sharing InSe4 tetrahedra. There are two shorter (2.65 Å) and two longer (2.66 Å) In–Se bond lengths. In the fourth In+2.50+ site, In+2.50+ is bonded to four Se2- atoms to form InSe4 tetrahedra that share edges with two equivalent TlSe4 tetrahedra. There are three shorter (2.65 Å) and one longer (2.66 Å) In–Se bond lengths. There are nine inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 2-coordinate geometry to five Tl+1.67+ and one In+2.50+ atom. In the second Se2- site, Se2- is bonded in a 2-coordinate geometry to five Tl+1.67+ and one In+2.50+ atom. In the third Se2- site, Se2- is bonded in a 2-coordinate geometry to five Tl+1.67+ and one In+2.50+ atom. The Se–Tl bond length is 2.73 Å. The Se–In bond length is 2.65 Å. In the fourth Se2- site, Se2- is bonded in a 2-coordinate geometry to five Tl+1.67+ and one In+2.50+ atom. In the fifth Se2- site, Se2- is bonded in a 2-coordinate geometry to four Tl+1.67+ and two In+2.50+ atoms. In the sixth Se2- site, Se2- is bonded in a 2-coordinate geometry to four equivalent Tl+1.67+ and two In+2.50+ atoms. In the seventh Se2- site, Se2- is bonded in a 2-coordinate geometry to four Tl+1.67+ and two equivalent In+2.50+ atoms. In the eighth Se2- site, Se2- is bonded in a 2-coordinate geometry to four equivalent Tl+1.67+ and two In+2.50+ atoms. In the ninth Se2- site, Se2- is bonded in a 2-coordinate geometry to four equivalent Tl+1.67+ and two equivalent In+2.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Yb8Tl3 by Materials Project

Yb8Tl3 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are eight inequivalent Yb sites. In the first Yb site, Yb is bonded in a 4-coordinate geometry to four Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.22–3.63 Å. In the second Yb site, Yb is bonded in a 4-coordinate geometry to four Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.22–3.61 Å. In the third Yb site, Yb is bonded in a 3-coordinate geometry to three Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.34–3.68 Å. In the fourth Yb site, Yb is bonded in a 2-coordinate geometry to four Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.21–3.74 Å. In the fifth Yb site, Yb is bonded in a distorted trigonal non-coplanar geometry to three Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.27–3.41 Å. In the sixth Yb site, Yb is bonded in a 4-coordinate geometry to four Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.15–3.64 Å. In the seventh Yb site, Yb is bonded in a distorted trigonal non-coplanar geometry to three Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.26–3.45 Å. In the eighth Yb site, Yb is bonded in a 4-coordinate geometry to four Tl atoms. There are a spread of Yb–Tl bond distances ranging from 3.26–3.56 Å. There are four inequivalent Tl sites. In the first Tl site, Tl is bonded in a 10-coordinate geometry to ten Yb atoms. In the second Tl site, Tl is bonded in a 10-coordinate geometry to ten Yb atoms. In the third Tl site, Tl is bonded in a body-centered cubic geometry to eight Yb atoms. In the fourth Tl site, Tl is bonded in a distorted q6 geometry to ten Yb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na2Nb18Tl7(PO8)9 by Materials Project

Na2Nb18Tl5(PO8)9(Tl)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional and consists of two thallium molecules and one Na2Nb18Tl5(PO8)9 framework. In the Na2Nb18Tl5(PO8)9 framework, there are two inequivalent Na sites. In the first Na site, Na is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Na–O bond distances ranging from 2.48–2.53 Å. In the second Na site, Na is bonded in a 6-coordinate geometry to six O atoms. There are a spread of Na–O bond distances ranging from 2.47–2.52 Å. There are eighteen inequivalent Nb sites. In the first Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–39°. There are a spread of Nb–O bond distances ranging from 1.89–2.17 Å. In the second Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 9–37°. There are a spread of Nb–O bond distances ranging from 1.89–2.17 Å. In the third Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–36°. There are a spread of Nb–O bond distances ranging from 1.90–2.17 Å. In the fourth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–34°. There are a spread of Nb–O bond distances ranging from 1.87–2.16 Å. In the fifth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–36°. There are a spread of Nb–O bond distances ranging from 1.88–2.16 Å. In the sixth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 1–39°. There are a spread of Nb–O bond distances ranging from 1.86–2.13 Å. In the seventh Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–32°. There are a spread of Nb–O bond distances ranging from 1.88–2.16 Å. In the eighth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 2–34°. There are a spread of Nb–O bond distances ranging from 1.86–2.18 Å. In the ninth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 6–37°. There are a spread of Nb–O bond distances ranging from 1.89–2.13 Å. In the tenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 1–37°. There are a spread of Nb–O bond distances ranging from 1.85–2.18 Å. In the eleventh Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 2–38°. There are a spread of Nb–O bond distances ranging from 1.87–2.15 Å. In the twelfth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–34°. There are a spread of Nb–O bond distances ranging from 1.89–2.17 Å. In the thirteenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 6–37°. There are a spread of Nb–O bond distances ranging from 1.86–2.17 Å. In the fourteenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–37°. There are a spread of Nb–O bond distances ranging from 1.87–2.17 Å. In the fifteenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 7–38°. There are a spread of Nb–O bond distances ranging from 1.89–2.11 Å. In the sixteenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–37°. There are a spread of Nb–O bond distances ranging from 1.88–2.13 Å. In the seventeenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 5–37°. There are a spread of Nb–O bond distances ranging from 1.86–2.17 Å. In the eighteenth Nb site, Nb is bonded to six O atoms to form NbO6 octahedra that share corners with four NbO6 octahedra and corners with two PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 5–34°. There are a spread of Nb–O bond distances ranging from 1.88–2.13 Å. There are five inequivalent Tl sites. In the first Tl site, Tl is bonded in a single-bond geometry to one O atom. The Tl–O bond length is 2.81 Å. In the second Tl site, Tl is bonded in a 3-coordinate geometry to three O atoms. There are a spread of Tl–O bond distances ranging from 2.53–2.78 Å. In the third Tl site, Tl is bonded in a 1-coordinate geometry to one O atom. The Tl–O bond length is 2.66 Å. In the fourth Tl site, Tl is bonded in a 3-coordinate geometry to three O atoms. There are a spread of Tl–O bond distances ranging from 2.82–2.85 Å. In the fifth Tl site, Tl is bonded in a 1-coordinate geometry to four O atoms. There are a spread of Tl–O bond distances ranging from 2.76–2.93 Å. There are nine inequivalent P sites. In the first P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–43°. There are a spread of P–O bond distances ranging from 1.53–1.56 Å. In the second P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 33–40°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. In the third P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 32–44°. There is one shorter (1.54 Å) and three longer (1.55 Å) P–O bond length. In the fourth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–40°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the fifth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–41°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the sixth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 37–41°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the seventh P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 31–47°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the eighth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 38–43°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. In the ninth P site, P is bonded to four O atoms to form PO4 tetrahedra that share corners with four NbO6 octahedra. The corner-sharing octahedra tilt angles range from 39–42°. There are a spread of P–O bond distances ranging from 1.54–1.56 Å. There are seventy-two inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to one Na, one Nb, and one P atom. In the second O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the third O site, O is bonded in a 3-coordinate geometry to one Na, one Nb, and one P atom. In the fourth O site, O is bonded in a 2-coordinate geometry to one Nb, one Tl, and one P atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one Nb and one P atom. In the sixth O site, O is bonded in a bent 150 degrees geometry to one Nb and one P atom. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Nb and one P atom. In the eighth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the ninth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the tenth O site, O is bonded in a bent 150 degrees geometry to one Nb and one P atom. In the eleventh O site, O is bonded in a linear geometry to two Nb atoms. In the twelfth O site, O is bonded in a distorted bent 150 degrees geometry to one Nb, one Tl, and one P atom. In the thirteenth O site, O is bonded in a 3-coordinate geometry to one Nb, one Tl, and one P atom. In the fourteenth O site, O is bonded in a distorted bent 150 degrees geometry to two Nb and one Tl atom. In the fifteenth O site, O is bonded in a 3-coordinate geometry to one Na, one Nb, and one P atom. In the sixteenth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the seventeenth O site, O is bonded in a distorted bent 150 degrees geometry to one Nb and one P atom. In the eighteenth O site, O is bonded in a 3-coordinate geometry to one Na, one Nb, and one P atom. In the nineteenth O site, O is bonded in a linear geometry to two Nb atoms. In the twentieth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the twenty-first O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the twenty-second O site, O is bonded in a distorted bent 150 degrees geometry to one Nb and one P atom. In the twenty-third O site, O is bonded in a linear geometry to two Nb atoms. In the twenty-fourth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the twenty-fifth O site, O is bonded in a 3-coordinate geometry to one Na, one Nb, and one P atom. In the twenty-sixth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the twenty-seventh O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the twenty-eighth O site, O is bonded in a bent 150 degrees geometry to one Nb and one P atom. In the twenty-ninth O site, O is bonded in a distorted bent 150 degrees geometry to two Nb and one Tl atom. In the thirtieth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the thirty-first O site, O is bonded in a distorted bent 150 degrees geometry to two Nb atoms. In the thirty-second O site, O is bonded in a linear geometry to two Nb atoms. In the thirty-third O site, O is bonded in a 2-coordinate geometry to one Nb, one Tl, and one P atom. In the thirty-fourth O site, O is bonded in a 2-coordinate geometry to one Nb, one Tl, and one P atom. In the thirty-fifth O site, O is bonded in a bent 150 degrees geometry to two Nb atoms. In the thirty-sixth O site, O is bonded in a 3-coordinate geometry to one Na, one Nb,

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tl2Pd9Pb by Materials Project

Pd9Tl2Pb is Uranium Silicide-derived structured and crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. there are ten inequivalent Pd sites. In the first Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl2Pd8Pb2 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.88–2.93 Å. Both Pd–Tl bond lengths are 2.89 Å. Both Pd–Pb bond lengths are 2.85 Å. In the second Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl2Pd8Pb2 cuboctahedra. There are two shorter (2.88 Å) and two longer (2.90 Å) Pd–Pd bond lengths. Both Pd–Tl bond lengths are 2.89 Å. Both Pd–Pb bond lengths are 2.85 Å. In the third Pd site, Pd is bonded to four Pd and four Tl atoms to form distorted PdTl4Pd4 cuboctahedra that share corners with eight TlPd12 cuboctahedra, corners with sixteen PdTl4Pd8 cuboctahedra, edges with four TlPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, and faces with six PdTl2Pd8Pb2 cuboctahedra. All Pd–Pd bond lengths are 2.88 Å. There are two shorter (2.84 Å) and two longer (2.87 Å) Pd–Tl bond lengths. In the fourth Pd site, Pd is bonded to eight Pd and four equivalent Tl atoms to form distorted PdTl4Pd8 cuboctahedra that share corners with twenty PdTl4Pd8 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with twelve PdTl2Pd8Pb2 cuboctahedra, faces with four equivalent TlPd12 cuboctahedra, and faces with ten PdTl4Pd8 cuboctahedra. All Pd–Pd bond lengths are 2.88 Å. All Pd–Tl bond lengths are 2.93 Å. In the fifth Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl2Pd8Pb2 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl2Pd8Pb2 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.84–2.93 Å. Both Pd–Tl bond lengths are 2.88 Å. Both Pd–Pb bond lengths are 2.90 Å. In the sixth Pd site, Pd is bonded to eight Pd and four equivalent Pb atoms to form PdPd8Pb4 cuboctahedra that share corners with four equivalent TlPd12 cuboctahedra, corners with eight PdTl4Pd8 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with twenty PdTl2Pd8Pb2 cuboctahedra, a faceface with one TlPd12 cuboctahedra, faces with four equivalent PbPd12 cuboctahedra, and faces with thirteen PdTl2Pd8Pb2 cuboctahedra. All Pd–Pb bond lengths are 2.93 Å. In the seventh Pd site, Pd is bonded to eight Pd and four equivalent Tl atoms to form PdTl4Pd8 cuboctahedra that share corners with four equivalent PbPd12 cuboctahedra, corners with sixteen PdTl4Pd8 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with sixteen PdTl2Pd8Pb2 cuboctahedra, a faceface with one PbPd12 cuboctahedra, faces with four equivalent TlPd12 cuboctahedra, and faces with nine PdTl4Pd8 cuboctahedra. All Pd–Tl bond lengths are 2.93 Å. In the eighth Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl4Pd4 cuboctahedra. There are two shorter (2.90 Å) and four longer (2.93 Å) Pd–Pd bond lengths. Both Pd–Tl bond lengths are 2.89 Å. Both Pd–Pb bond lengths are 2.85 Å. In the ninth Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl4Pd4 cuboctahedra. There are a spread of Pd–Pd bond distances ranging from 2.84–2.93 Å. Both Pd–Tl bond lengths are 2.88 Å. Both Pd–Pb bond lengths are 2.90 Å. In the tenth Pd site, Pd is bonded to eight Pd, two equivalent Tl, and two equivalent Pb atoms to form distorted PdTl2Pd8Pb2 cuboctahedra that share corners with twelve PdTl2Pd8Pb2 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd4 cuboctahedra, faces with two equivalent TlPd12 cuboctahedra, faces with two equivalent PbPd12 cuboctahedra, and faces with fourteen PdTl4Pd4 cuboctahedra. There are two shorter (2.84 Å) and two longer (2.85 Å) Pd–Pd bond lengths. Both Pd–Tl bond lengths are 2.88 Å. Both Pd–Pb bond lengths are 2.90 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded to twelve Pd atoms to form TlPd12 cuboctahedra that share corners with eight TlPd12 cuboctahedra, corners with twelve PdPd8Pb4 cuboctahedra, edges with four equivalent PbPd12 cuboctahedra, edges with sixteen PdTl4Pd8 cuboctahedra, faces with five TlPd12 cuboctahedra, and faces with nine PdTl2Pd8Pb2 cuboctahedra. In the second Tl site, Tl is bonded to twelve Pd atoms to form TlPd12 cuboctahedra that share corners with four equivalent PbPd12 cuboctahedra, corners with eight equivalent PdTl4Pd4 cuboctahedra, corners with eight TlPd12 cuboctahedra, edges with twenty PdPd8Pb4 cuboctahedra, a faceface with one PbPd12 cuboctahedra, faces with five TlPd12 cuboctahedra, and faces with eight PdTl4Pd8 cuboctahedra. Pb is bonded to twelve Pd atoms to form PbPd12 cuboctahedra that share corners with four equivalent PdTl4Pd8 cuboctahedra, corners with four equivalent TlPd12 cuboctahedra, corners with four equivalent PbPd12 cuboctahedra, edges with four equivalent TlPd12 cuboctahedra, edges with twenty PdTl2Pd8Pb2 cuboctahedra, a faceface with one TlPd12 cuboctahedra, faces with four equivalent PbPd12 cuboctahedra, and faces with thirteen PdTl2Pd8Pb2 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BaTl4 by Materials Project

BaTl4 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ba is bonded in a 6-coordinate geometry to sixteen Tl atoms. There are a spread of Ba–Tl bond distances ranging from 3.69–4.24 Å. There are four inequivalent Tl sites. In the first Tl site, Tl is bonded in a 10-coordinate geometry to five equivalent Ba and five Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.19–3.32 Å. In the second Tl site, Tl is bonded in a 6-coordinate geometry to three equivalent Ba and four Tl atoms. There are a spread of Tl–Tl bond distances ranging from 3.17–3.56 Å. In the third Tl site, Tl is bonded in a 10-coordinate geometry to four equivalent Ba and six Tl atoms. Both Tl–Tl bond lengths are 3.52 Å. In the fourth Tl site, Tl is bonded in a 11-coordinate geometry to four equivalent Ba and seven Tl atoms. The Tl–Tl bond length is 3.31 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Rb5Tl3O by Materials Project

Rb5Tl3O crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are five inequivalent Rb sites. In the first Rb site, Rb is bonded in a water-like geometry to two equivalent Tl and two equivalent O atoms. Both Rb–Tl bond lengths are 4.23 Å. There are one shorter (2.99 Å) and one longer (3.05 Å) Rb–O bond lengths. In the second Rb site, Rb is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.92 Å) and two longer (4.20 Å) Rb–Tl bond lengths. The Rb–O bond length is 2.86 Å. In the third Rb site, Rb is bonded in a single-bond geometry to four Tl and one O atom. There are two shorter (3.92 Å) and two longer (4.19 Å) Rb–Tl bond lengths. The Rb–O bond length is 2.81 Å. In the fourth Rb site, Rb is bonded in a single-bond geometry to four equivalent Tl and one O atom. There are two shorter (3.94 Å) and two longer (4.15 Å) Rb–Tl bond lengths. The Rb–O bond length is 2.67 Å. In the fifth Rb site, Rb is bonded in a single-bond geometry to two equivalent Tl and one O atom. Both Rb–Tl bond lengths are 3.79 Å. The Rb–O bond length is 2.68 Å. There are three inequivalent Tl sites. In the first Tl site, Tl is bonded in a distorted body-centered cubic geometry to four Rb and four Tl atoms. There are two shorter (3.13 Å) and two longer (3.20 Å) Tl–Tl bond lengths. In the second Tl site, Tl is bonded in a 8-coordinate geometry to six Rb and two equivalent Tl atoms. In the third Tl site, Tl is bonded in a 8-coordinate geometry to six Rb and two equivalent Tl atoms. There are two inequivalent O sites. In the first O site, O is bonded in an octahedral geometry to six Rb atoms. In the second O site, O is bonded to six Rb atoms to form edge-sharing ORb6 octahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na2Tl by Materials Project

Na2Tl crystallizes in the orthorhombic C222_1 space group. The structure is three-dimensional. there are five inequivalent Na sites. In the first Na site, Na is bonded in a 4-coordinate geometry to two equivalent Na and four Tl atoms. Both Na–Na bond lengths are 3.46 Å. There are two shorter (3.35 Å) and two longer (3.42 Å) Na–Tl bond lengths. In the second Na site, Na is bonded in a 12-coordinate geometry to six Na and six Tl atoms. There are a spread of Na–Na bond distances ranging from 3.35–3.65 Å. There are a spread of Na–Tl bond distances ranging from 3.38–3.65 Å. In the third Na site, Na is bonded in a 1-coordinate geometry to eight Na and five Tl atoms. There are a spread of Na–Na bond distances ranging from 3.58–3.95 Å. There are a spread of Na–Tl bond distances ranging from 3.44–3.76 Å. In the fourth Na site, Na is bonded in a 4-coordinate geometry to three Na and four Tl atoms. There are a spread of Na–Tl bond distances ranging from 3.20–3.32 Å. In the fifth Na site, Na is bonded in a 3-coordinate geometry to four Na and three Tl atoms. There are a spread of Na–Tl bond distances ranging from 3.34–3.50 Å. There are two inequivalent Tl sites. In the first Tl site, Tl is bonded in a 12-coordinate geometry to nine Na and three Tl atoms. There are two shorter (3.29 Å) and one longer (3.40 Å) Tl–Tl bond lengths. In the second Tl site, Tl is bonded in a 11-coordinate geometry to eight Na and three Tl atoms. The Tl–Tl bond length is 3.28 Å.

36 MATERIALS SCIENCE↗